Jar-closure.



No. 895,907. H. A. SPILLER.

JAR CLOSURE.

APPLICATION FILED NOV. 18, 1907.

PATENTED AUG. 11, 1908.

"11A, JR; QM

UNITED STATES PATENT OFFICE.

HARRY A. SPILLER, OF BOSTON, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO

BROWN-BINNIAN COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSA- GHUSETTS.

JAR-CLOSURE Specification of Letters Patent.

Patented Aug. 11, 1908.

Application filed November 18, 1907. Serial No. 402,615.

To all whom it may concern:

Be it known that I, T'TARRY A. SPILLER, of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and Improved Jar-Closure; and I hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

The invention has reference to improve ments in disk closures for jars, bottles or other receptacles and, as described herein, relates particularly to disk closures or seals formed of paper, card board, or other compacted fibrous material designed for use in connection with a bottle or jar having a neck furnished with an inner annular shoulder.

The object of the invention is to so construct a disk closure for milk jars and other similar receptacles that said disk can be firmly secured in place in the mouth of the jar and held from accidental displacement.

Another object of the invention is to so construct a flexible disk closure of this nature that it may accommodate itself to the ordinary irregularities of the neck of the jar into which it is forced and that edge portions of the closure may pack tightly in place.

Another object of the invention is to so construct a disk closure of this nature that, while adapted to closely fit the neck of the jar for which it is designed, its tendency to buckling while being forced into position is practically eliminated.

Another object of the invention is to so construct a disk closure of this nature that edge portions of said disk may be slightly distorted from their original shape, when the disk is forced into the neck of a ar, to more effectually press said portions against the neck of the jar.

Other objects of the invention will appear from the following description.

The invention consists in the peculiar shape of the improved disk closure.

The invention also consists in a disk closure elliptical 011 one of its surfaces and having indicating means for indicating the direction of the ellipse.

Figure 1, represents a plan View of the improved disk closure. Fig. 2, represents an edge view of the same. Fig. 3, represents a cross sectional view thereof taken on line 33 Fig. 1. Fig. 4, represents a similar view taken on line 4-4 Fig. 1. Fig. 5, represents a sectional view of portions of the neck of a jar or other receptacle With a sectional viewof theimproved disk closure about to be forced into its seat.

Similar numbers of reference designate corresponding parts throughout.

Closures of this nature are generally formed by cutting circular disks from paper or card board of suitable thickness. These disks are designed for use as closures for milk jars and similar receptacles having necks furnished with annular seats and a wall above said seats which is inclined slightly inward so that at its upper end said Wall describes a circle slightly less in diameter than the diameter of the seal. When now the seal, as heretofore constructed, is forced through the contracted end of said wall the edges of the disk tend to curl upward and there is also a tendency for the disk to bend or buckle. As a result of the bending upward of the edge of the disk said edge does not bear fully against the wall of the bottle neck, nor does such edge accommocllate itself fully to the irregularities of said wal In carrying this invention into practice my desire has been to so construct a disk closure preferably of fibrous material, that when forced into the neck of a jar or bottle certain parts of the disk being resisted by the wall of the bottle neck and, reacting under such pressure, would tend to so distort the upper edge portion of the diskto spread the same into close contact with the wall of the bottle neck.

As shown in the drawings in its preferred form the disk closure has the circular top surface 6 and the elliptical bottom surface 7 of which the smaller diameter, indicated at 44, coincides with the diameter of the surface 6 so that the edge 8 of the disk is practically rectangular to the planes of surfaces 6 and 7 while the edge 9 is beveled and becomes thinner towards the diameter indicated by the line 33. In order that the greatest advantage of the edge 9 may be obtained by the user the top surface 6 may be, an d preferably is, furnished with means for indicating the direction in which such lip has its greatest extension. In the present instance this indicating means consists of the arrows 1010 and the Word 11 printed on the surface 6 but I do not desire to limit m self to any particular indicating means.

The neck of the bottle or jar with which this disk closure is designed for use is of any usual construction and is illustrated in part in Fig. 5 of the drawing in which the usual annular seat a is embraced by the wall 1) having the inclined surface 0 and the shoulder d. The improved disk is preferably inserted as indicated in Fig. 5, one of the edges 9 being first inserted and brought against the wall a, the other of said edges 9 is then pressed down over the rounded shoulder 61 of the bottle neck and, as a result, compression of the disk takes place on the diagonal lines xy which tends to slightly distort the disk at its upper surface edge to expand such edge against the wall 0 of the bottle neck, and to press said edge, and the lower part of the edge 9 into the irregularities of the bottle neck.

Having thus described my invention I claim as new and desire to secure by Letters Patent.

1. A disk closure for milk jars and similar receptacles, having an elliptical bottom surface and an upper surface differing in shape from said bottom surface.

2. A disk closure, for milk jars and similar receptacles, having an elliptical surface furnished with a bevel edge.

3. A disk closure, for milk jars and similar receptacles, having an elliptical surface and a bevel edge varying in inclination to such surface at different points.

4. A disk closure, for milk j ars and similar receptacles, having an elliptical surface and an edge varying in inclination to such surface and rectangular thereto at the flattened parts of the ellipse.

5. A disk closure, for milk jars and similar receptacles, having a circular surface and an elliptical surface.

6. A disk closure, for milk jars and similar receptacles, having a circular top and a bevel edge extending therefrom said edge varying in inclination from said top and extending at right angles to the top at diametrically opposed points.

7. A closure for milk jars and similar receptacles, comprising a disk having a circular surface with bevel edges the angles of which become acute at the sides of the disk, said disk being provided with means for indicating the direction in which the bevel portions of said edges extend.

8. A closure, for milk jars and similar receptacles, comprising a disk having an elliptical surface and furnished at its exposed surface with printed means for indicating the direction of greatest diameter of said elliptical surface as and for the purpose described.

HARRY A. SPILLER.

Witnesses:

H. J. MILLER, M. M. HARRINGTON. 

